Secret Lair Drop

Tezzeret the Seeker

[+1]: Untap up to two target artifacts.
[−X]: Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.
[−5]: Artifacts you control become artifact creatures with base power and toughness 5/5 until end of turn.

Mythic Edition

+1: Untap up to two target artifacts.
−X: Search your library for an artifact card with converted mana cost X or less and put it onto the battlefield. Then shuffle your library.
−5: Artifacts you control become artifact creatures with base power and toughness 5/5 until end of turn.

Modern Masters 2015

Duel Decks: Elspeth vs. Tezzeret

+1: Untap up to two target artifacts.
-X: Search your library for an artifact card with converted mana cost X or less and put it onto the battlefield. Then shuffle your library.
-5: Artifacts you control become 5/5 artifact creatures until end of turn.

Shards of Alara

+1: Untap up to two target artifacts.
-X: Search your library for an artifact card with converted mana cost X or less and put it into play. Then shuffle your library.
-5: Artifacts you control become 5/5 artifact creatures until end of turn.